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by liz_upton 5403 days ago
Hi - I'm Liz from Raspberry Pi. What you can see in that vid isn't the whole of Inglorious Basterds, but just the trailer (which is why it fits on a small SD card) - we were playing it on a loop. The Raspberry Pi can play back full 25 megabit HDMI; it's part of our mobile phone SoC dividend.
6 comments

By mobile phone SoC dividend, that's the VideoCore discrete signal processor, right?

From what I can gather Pi has a BCM2763 (as a DSP co-processor to the an ARM, or standalone?) or BCM2835 (combining a DSP and ARM on one chip) ... wikipedia is a bit hazy. (edit: it's the BCM2835 DSP + ARM on a chip, according to the rasberrypi FAQ).

It's got hardware that's dedicated to doing things it's 700MHz ARM chip simply can't, like watching YouTube in fullscreen (obligatory http://xkcd.com/619/). It should be able to do anything a high-end mobile phone can do (except take calls), which is what most people want.

It might be a good deal cooler with a $2 wifi chip (though that might make it harder to manufacture), or a $10 wifi USB adaptor, but I guess you have to draw the line somewhere.

It's a cine clip, so I think it was 24fps. We can decode 30fps, but it's actually quite hard to find content!
Do you have a reference for the technical details of this? Do you know how much power it draws? Are details like MTTF known? Where did you get the H264 decoder from?

Exciting stuff.

I'd be glad to generate some 30fps HD content (nothing fancy, just some CGI loops that will show the smoothness of video playback) in exchange for the ability to purchase the higher-end version sooner.
Well in that case I'm even more impressed. It's a pity the article doesn't mention that. What's the frame rate?
Congrats Liz, great little piece of kit!

Think we are seeing the start of a new uber cheap PC market. Almost zero cost. It will make a big difference in the developing world and I think will be a huge hit (at least amongst the tech geeks) in developed nations.

PS +1 on the comment for wifi in v2

I REALLY want one of these now - how much to get a unit NOW rather than waiting till you hit the $25 price point?
It's not a question of money. They are a UK charity and their 50 alpha boards are out amongst those who can provide the most benefit to the project.

Get in line behind the rest of us. :-)

They're on an alpha unit at the moment IIRC. I'd expect it to cost a lot and to slow down final production for them to start trying to sell at this stage.
Just to nitpick: HDMI is approx 10Gbit/s interface. If you are talking about decoding capabilities, then H.264 profile/level would be more useful metric, ie H.264 High Profile, Level 4 (which I think is what Blu-ray video usually is, or at least close to it).

It's a hardware decoder, right? So it's decoding capabilities are not really representative of it's general performance?